Pearl and A358 Mar 2023 19:22
These 2 targets have been the focus these last few days starting with news of the native copper found in the rotary drill spoils.
This was found in the diamond drill hole between 77m and 151m, where water flowed into the hole making retrieving the core impossible.
Rotary mud drilling is where they use drilling mud around the drill bit blocking pours to prevent water ingress and allowing all the spoils to be retrieved at the surface.
It’s these spoils where they used the handheld XRF machine to scan them for mineralisation and found copper with a 17% value.
This gap in the drilling looks like the supergene trap.
It’s called a supergene as minerals are washed out of a strata and conglomerate together in a geological trap.
Winu has a supergene layer around 75m thick, but also underneath this it has a hypergene where hot hydro fluids forces minerals upwards and conglomerates under the trap which is where most of Winu’s minerals are situated.
I can’t tell from what I’ve seen whether there is hypergene or not but there are some clues.
The diamond drilling carried on below the 151m level and found additional mineralisation lower down.
They’ve stated finding chalcopyrites which we know is one of the main copper sulphide ores, this suggests fluids rising.
There is another anomaly down there which they’ve been targeting.
Looks like they are going deeper with the next round of drilling.
It looks like it may be a hypergene situation in my opinion but only more drilling will reveal what’s.
In between Pearl and A35 we have Swan, so Swan is sat between what looks like 2 possible supergene targets or maybe just 1 connecting them all.
Getting very interesting.
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